Normal distribution curve:
A. Mean, median, mode are same
B. B/L symmetrical
C. Bell shape
D. SD is zero
E. Mean is one
A. Mean, median, mode are same
B. B/L symmetrical
C. Bell shape
D. SD is zero
E. Mean is one
Ans. A, B, C
The standard distribution curve (Normal distribution) is a
perfectly symmetrical, bell shaped curve such that the mean, median and mode,
all have the same value and coincide at the centre
Standard Distribution Curve (Normal):
Mean = Median = Mode
CHARACTERISTICS
OF A NORMAL DISTRIBUTION CURVE:
Standard normal curve –
smooth
Bell – shaped [MCQ]
Perfectly symmetrical
Based on infinitely
larger number of observation
Total area of the curve
is 1 [MCQ]
The mean is zero [MCQ]
Standard deviation is one
[MCQ]
Mean, Median and Mode all
coincide [MCQ]
Area in 1SD is 68.3% [MCQ]
Area in 2SD is 95.4% [MCQ]
Area in 3SD is 99.7% [MCQ]
